Bar support and spacer for concrete-reinforcements.



H. H. LAMPERL BAR SUPPORT AND SPAGER FOR CONCRETE REINFORCEMENTS.

Patented Feb. Qfi, 1918-.

APPLICATION FILED JULY 12, I916;

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' HENRY H. LAMPEBT, 01E CHICAGO, ILLINOIS.

Specification of Letters Patent.

. Patented Feb. 2t, 11%

Application filed July 12, 1916. Serial No. 108,913.

To all whom it may concern:

Be it known that T, HENRY H. LAMPERT, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Bar Supports and Spacers for Concrete-Reinforcements, of which the following is a specification.

The main objects of this invention are to provide an improved construction and arrangement of a bar supporting device for use in concrete reinforcements, whereby a plurality of bar supporting and clamping means are connected together in spaced relation so that they may be quickly and conveniently placed on the false-work 1n properly alined positions to receive the bars preparatory to pouring the concrete, and to provide an improved manner of securmgtogether the separately formed bar clamping means and spacing means.

An illustrative embodiment of this invention is shown in the accompanying drawings, in which Figure 1 is a perspectlve view of a portion of a bar spacing and supporting device constructed in accordance with this invention, fragments of the bars being shown in dotted outline. 1

Fig. 2 is an enlarged side elevation of one of the bar supports, and a portion of the spacing means. I

In arranging the reinforcing bars for concrete construction, it is quite desirable to have the supports uniformly spaced apart transversely to the length of the bars and alined longitudinally thereof. When the supports are separately placed on the falsework, it is necessary to handle each one individually and mark otftheir positions on the false-work. This involves considerable time and each support must be secured to the false-work or else great care exercised in preventing them from becoming disturbed before the concrete is poured and even during the pouring of the concrete.

If, however, the supports are combined with a suitable spacing means whereby they are uniformly spaced apart in series, they may be arranged on the false-work, and only one or two fastening means is required to secure the series in their proper positions.

To this end, the construction herein shown embodies the use of a spacing strip 3 and a plurality of bar clamping means 4. Each of the bar clamping means 4 as herein illusing a strip substantially straight trated is substantially like that shown and claimed in my copending application Serial No. 13,584, filed March 11, 1915. Each one is separately formed from a sheet of metal so as to provide a seat 5, depending legs 6 and upwardly disposed fingers 7. The seat 5 and depen in legs 6 constitute a substantially inverted -shape chair, and the fingers 7 are located at diagonally opposite sides thereof.

The clamping means 4 are rigidly secured at intervals along the strip 3. This may be accomplished in any suitable manner, but it is preferred to locate the clamping means with the strip 3 engaging the seats 5 sothat the fingers 7 are on opposite sides of the strip 3, and the strip is secured to the seats by means of spot welding as indicated at 8 in the drawings. By forming the clamping means and spacmg strip separate, a considerably less amount of material is required and'much expense and trouble are avoided as compared with a similar structure wherein the legs and fingers are formed from a single metal strip.

Apertures 9 are formed in suitable places along the spacing strip 3 so that a series of the supports maybe nailed in position on the false-work by two or three nails or other fas tening means.

The reinforcing bars 10 are placed between the fingers so as to rest upon the strip 3 directly above the seats 5. The fingers are then bent over the bars so that they are firmly gripped to the supporting device. In case 1t is desired to use the supporting device at places where bars intersect, the supporting means are arranged so that the lower bar extends longitudinally along the spacing strip 3, between the fingers'7. The upper bar therefore occupies relatively the same position as shown in Fig. 1, except that it rests upon the lower bar.

Although but one specific embodiment of this invention has been herein shown and the spirit of this invention as defined by the following claims.

I claim:

1. As an article of manufacture, a unitary structure for use as a bar supporting device for concrete reinforcements, comprisfrom end to end, and bar clamping means perma- Y n'ently arranged at intervals therealong,

.gers being space each of said means comprising a depending leg and upwardl disposed fingers, said finapart diagonally at opposite edges of said strip so as to constitute said strip a seat portion between and adjacent to said fingers, said legs serving to support said seat portions above the falsework on-which the concrete is to be poured, in position to support transverse reinforcing bars,'said fingers being bendable longitudinally of said strip over said bars.

2. As an article of manufacture, a'unitary structure for use as a bar supporting device for concrete reinforcements, comprising a strip substantially straight from end to end, and bar clampin means permanently arranged at interva s therealong, each of said means comprising a depending leg and upwardlydisposed fingers, said fingers being spaced apart longitudinally of said strip at opposite edges thereof so as to constitute said strip a seat portion between and adjacent to said fingers, said legs servin to support said seat portions above the falsew'ork on which the concrete is to be poured, in position to support transverse reinforcing bars, said fingers being bendable in opposite directions over said bars.

3. As an article of manufacture, a unitary structure for use as a bar supporting device for concrete reinforcements, comprising a strip substantially straight from end to end and separately formed bar clamping means attached to said strip at intervals therealong, each of said means comprising a depending leg and upwardly disposed fingers'arranged with respect to said leg so as to be located at diagonally opposite edges of said strip and thereby constitute said strip a seat portion between said fingers, said legs serving to support said strip spaced above the false work upon which the concrete is to be poured, in position to support transverse reinforcing bars, saidfingers being bendlztble longitudinally of said strip over such ars.

4. As an article of manufacture, a unitary structure for use as a bar supporting device for concrete reinforcements, comprising a stri substantially straight from end to end an separately formed bar clamping means attached to said strip at intervals therealong, each of said means being separately formed from a piece of sheet metal so as to provide a depending leg, a transversely disposed seat portion, and upwardly disposed fingers located at diagonally opposite sides of said seat ortion, said strip resting upon the seat portions of said means between said fingers and being secured to said seat portions by spot-welding, said legs being adapted to support said strip spaced above the false work on which the concrete is to be'poured, and said fingers being bendable longitudinally of said stri over bars resting thereupon between sai fingers and extending transversely of said strip.

5. As an article of manufacture, a unitary structure for use as a bar supporting device for concrete reinforcements, comprising a stri substantially straight from end to end an of uniform cross section throughout the length thereof, and separately formed bar clam-ping means arranged at intervals therealong, each of said means comprising a dcpendi leg and upwardly dis posed fingers space apart transversely and diagonally of said strip, said legs serving to support said strip between said fingers and spaced above the falsework on which the concrete is to be poured, so that said strip constitutes a seat between and adjacent to the fingers of each of said means on which to support transverse reinforcing bars, said fingers being bendable longitudinally of said strip over such bars.

9Signed at Chicago this 10th day of July 1 16.

HENRY H. LAMPERT. 

